X0306 4 2021-08-02 1 0000022701 COMMUNICATIONS SYSTEMS INC JCS 0001834663 Kumar Anita 10900 RED CIRCLE DRIVE MINNETONKA MN 55343 1 1 0 0 President/CEO Common Stock 2021-08-02 4 M 0 10493 5.39 A 17886 D Common Stock 2021-08-02 4 F 0 9071 7.15 D 8815 D Common Stock 2021-08-02 4 M 0 25000 4.45 A 33815 D Common Stock 2021-08-02 4 F 0 19805 7.15 D 14010 D Common Stock 2021-08-02 4 M 0 1992 7.15 A 16002 D Common Stock 2021-08-02 4 F 0 609 7.15 D 15393 D Common Stock 2021-08-02 4 M 0 4743 7.15 A 20136 D Common Stock 2021-08-02 4 F 0 1451 7.15 D 18685 D Common Stock 2021-08-02 4 M 0 5000 7.15 A 23685 D Common Stock 2021-08-02 4 F 0 1530 7.15 D 22155 D Common Stock 7331.3198 I By ESOP Stock Option (Right-to-Buy) 5.39 2021-08-02 4 M 0 10493 0 D 2021-08-01 2027-05-06 Common Stock 10493 0 D Stock Option (Right-to-Buy) 4.45 2021-08-02 4 M 0 25000 0 D 2021-08-01 2027-06-06 Common Stock 25000 0 D Restricted Stock Units 7.15 2021-08-02 4 M 0 1992 0 D 2021-08-01 2026-03-28 Common Stock 1992 0 D Restricted Stock Units 7.15 2021-08-02 4 M 0 4743 0 D 2021-08-01 2027-05-08 Common Stock 4743 0 D Restricted Stock Units 7.15 2021-08-02 4 M 0 5000 0 D 2021-08-01 2027-05-06 Common Stock 5000 0 D Suzette McNally, Attorney-in-Fact for Anita Kumar 2021-08-04